Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9421623 | Apparatus for sharpening beet-cutter knives | Michele Lodico | 2016-08-23 |
| 5066567 | Image reversal process utilizing a positive-working photosensitive composition containing a dye | Hans-Joachim Merrem, Gerhard Buhr | 1991-11-19 |
| 4927732 | Positive-working photosensitive composition containing a dye and positive-working photosensitive recording material prepared therefrom | Hans-Joachim Merrem, Gerhard Buhr | 1990-05-22 |